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Site Info - Www.gov.ukOverview of web technologies used by Www.gov.uk. Website Background Welcome to GOV.UKGOV.UK - The best place to find government services and information. Description on Homepage Top 1k among all websites Popularity rank JavaScript is a lightweight, object-oriented, cross-platform scripting language, often used within web pages. Nginx (pronounced as "engine X") is a lightweight open source web server developed by Igor Sysoev. Fastly is a content delivery network. Fastly GlobalSign is an IT security service provider, also operating as SSL certificate authority. Facebook Social Plugins provide a way for Facebook users to share web pages with their friends. Facebook A Twitter Button allows a Twitter user to post a tweet from the visited site. Twitter External Cascading Style Sheets define style rules in a separate CSS file. Brotli is a lossless compression algorithm developed by Google. A weak ETag is an HTTP header field for validation of cached web pages, that indicates a semantically equivalent page in the cache. The Internet Protocol version 6 (IPv6) provides amongst others a vastly larger address space than the preceding version 4. We consider a website to support IPv6 if a 128-bit address is assigned to it, regardless of the content delivered at that address. HTTP/3 is the third major version of the HTTP network protocol, derived from the QUIC protocol. HTTP Strict Transport Security (HSTS) defines a mechanism enabling web sites to declare themselves accessible only via secure connections. HTTP Strict Transport Security The websites redirects visitors to its www subdomain, e.g. from example.com to www.example.com. The websites redirects visitors to use SSL encryption, e.g. from http://example.com/ to https://example.com/. The Open Graph protocol, originally developed by Facebook, is an RDFa-based format that enables any web page to become a rich object in a social graph. Twitter Cards enable automatic attachment of photos, videos and media elements to Tweets. Twitter Cards JSON-LD (JavaScript Object Notation for Linked Data) is a method of encoding Linked Data using JSON. JSON-LD HTML5 is the fifth revision of the HTML standard. UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, which is backwards compatible with ASCII. PNG (Portable Network Graphics) is a lossless compression image format, suitable to store graphics with uniformly colored areas, and originally introduced as a free, open-source successor of GIF. Scalable Vector Graphics (SVG) is an XML-based vector image format. JPEG (Joint Photographic Experts Group) is a lossy compression method suitable to store photographic images. JPEG United Kingdom
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